Home / 20,361.58-28,097.37-11,407.06

Finding the Fourth Proportional to 20,361.58, 28,097.37 and 11,407.06

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Solution

The fourth proportional to 20,361.58, 28,097.37 and 11,407.06 is: 15,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.58 : 28,097.37 = 11,407.06 : x
  2. Step 2: Convert to fraction form
    20,361.58/28,097.37 = 11,407.06/x
  3. Step 3: Cross multiply
    20,361.58x = 28,097.37 × 11,407.06
  4. Step 4: Simplify right side
    20,361.58x = 320,508,385.43
  5. Step 5: Solve for x
    x = 320,508,385.43/20,361.58
  6. Step 6: Final answer
    x = 15,740.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.